Blackmagic Design URSA Mini Pro PL Mount - For lenses with PL mount The URSA Mini Pro PL Mount from Blackmagic Design is a replacement mount for use on the URSA Mini Pro that enables you to mount PL lenses on your camera. The PL mount incorporates electronic contacts compatible with the Cooke i/Technology protocol, which allows lens information to be saved as metadata. The included shim kit enables precise flange-distance adjustment when installing this mount on your camera.